Home / 20,682.66-28,541.94-11,251.26

Finding the Fourth Proportional to 20,682.66, 28,541.94 and 11,251.26

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Solution

The fourth proportional to 20,682.66, 28,541.94 and 11,251.26 is: 15,526.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.66 : 28,541.94 = 11,251.26 : x
  2. Step 2: Convert to fraction form
    20,682.66/28,541.94 = 11,251.26/x
  3. Step 3: Cross multiply
    20,682.66x = 28,541.94 × 11,251.26
  4. Step 4: Simplify right side
    20,682.66x = 321,132,787.84
  5. Step 5: Solve for x
    x = 321,132,787.84/20,682.66
  6. Step 6: Final answer
    x = 15,526.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.